Deliberate deceptive false marketing and Reneging on the contract.
Even 1 star is an overstatement. If there was a negative rating I would have given them -10. Mondo/Rewardsco is thieving, lying, deceitful company where even the line managers do not keep to their word. If you receive a call from them please do not entertain their call. Report them for unsolicited marketing to DMASA. They will sell you something which will be too good to resist and you will sign up only to be deceived. You will realise the deceit after you receive the product which will NOT be what was sold to you. The problem that you will now have is trying to rectify and getting the correct product. You will try for weeks and months but there will be no assistance. you will be promised feedback and that feedback will never arrive.
I relate my experience below and having read the many reviews on hellopeter mine is not an isolated incident. It's a deliberate strategy to hoodwink consumers.

On Friday 08/07/2022 I received a call from Mondo stating that they have a very good internet package for me. The package is 5G 100 Mbps upload and download speed, unlimited, unthrottled with Fair Usage policy of half a terabyte after which it will drop to 50 mbps. The package is for R399 only including a free 5G router and no hidden costs. There were also other promises made regarding the offer which for the sake of brevity I will not mention here. I was promised that i will receive the router with SIM in 3-5 days.

The router only arrived on the 27/07/2022. When i opened the packaging and studied the contents it was a 4G router and not a 5G as promised.
I called the mondo call centre to inform them about the error on 28/07/2022. A line manager by the name of Mr. Minenhle Buthelezi informed me that he will investigate the matter by hearing the call recording and get back to me by the end of Business the very same day. Lo and behold! The call never came. 
I called the call center on 29/07/2022 and requested to speak to Mr. Buthelezi who informed me that the investigation was in my favour and the sales agent deceived me by saying it was a 5G package as stated above. He said I should return the 4G router and by returning it to an MTN store near me will be quicker than they sending a courier to pick it up and once the 4G router is received by them he will send the 5G router. He also mentioned he will get back to me by Tuesday 02/08/2022 with the deal. I returned the 4G router on 30/07/2022 at the MTN store at Savannah Mall in Polokwane. I was given the IRMS number which I forwarded to Mr. Buthelezi on 01/08/2022 via email.
Mr. Buthelezi once again did not call back on 02/08/2022 as promised neither did he reply to the email sent on 01/08/2022. I emailed him once again on 03/08/2022 to which he replied on 04/08/2022 with a link to some deals which can be accessed via a simple internet search and that they are awaiting confirmation of the return of the 4G router from MTN. Nothing was indicated how the 5G contract for R399 will be fulfilled. I replied to him stating:
“So basically you took 6 days to google a link and send it to me, which takes me 5min. to do! Do you think I can't look for a deal myself?  What deal did you really work out? You are supposed to work out how you are going to fulfill the contract that you signed me up for without inconveniencing me. Mondo offered me an uncapped 5G free router deal with 100mbps up and down speeds for R399 which I signed up for. You sent me a 4G Router instead which I returned as per your request. By law you are supposed to honour the deal.
It is really inconsiderate for you to just disregard the deal sold to me and claim that your agent deceived me and leave it at that. To me Mondo sold me a package and now are reneging on the contract.
Please give me a concrete answer as to how you are going to fulfill your part of the contract.
Are you telling me that after 6 days MTN has not informed you of receipt of the router? How ridiculous is this? You told me that if I return it to the MTN store it will be quicker than the courier collecting it from me! It would take 2/3 days! .Please contact MTN and ask them what's happening and sort the matter out as a matter of urgency!”
I received No response once again. 
On 07/08/2022 I received an SMS stating that my Mondo Administration fee of R85 was due etc.
I called the call center once again on 08/08/2022 and requested to speak to Mr. Buthelezi. The agent informed me that Mr. Buthelezi was busy on another call and will call me back at 13:00 on the same day. I also requested the call center agent to put me through to Mr. Buthelezi’s supervisor to which she responded that she is unable to but will request the Mr. Buthelezi’s supervisor to call me back and as expected there was no call received from Mr. Buthelezi nor his supervisor till date.
I emailed Mr. Buthelezi on 10/08/2022 to enquire why he did not call back as promised on 08/08/2022 and why was I being charged an Admin fee of R85. I did not receive any response once again.
I emailed Mr. Buthelezi once again on 12/08/2022 to enquire why is he not responding to my emails or calling me back. That email bounced back possibly indicating that he has blocked me.
Till date No one has comeback to me with any solution to resolve the issue and I don't expect them to. I have laid a complaint with DMASA and will also lay a complaint with CGSO.
I implore everyone who has had a similar experience to also lay complaints to DMASA and CGSO to take Mondo/Rewardsco to task. Otherwise they will continue their nefarious activities without consequences.

I know Mondo will reply to this post with. We will investigate the matter and blah blah blah and give an RCO number which I already have. There will be no fulfilling of the contract!