The bank is offering to let him delay payment of a loan in return for some fees
Question

                I borrowed an amount from a bank. The bank offers to delay the installments up to three times a year in return for extra fees to be added. Is it permissible to delay paying installments?.
Praise be to Allah.A loan is a contract that 
    is based on kindness is a kind of charitable action, and it is not 
    permissible to stipulate that interest be paid on it, either at the 
    beginning of the contract or when there is a delay in payment. It was a 
    common feature of the riba of the Jaahiliyyah that if the borrower was 
    unable to pay off, it would be said to him, “Add more and pay later” i.e., 
    add some more money to the loan and we will give you longer to pay it back. 
Ibn al-Jawzi (may Allaah 
    have mercy on him) said: The scholars of tafseer said concerning the words 
    of Allaah, “O you who believe! Consume not Ribaa
    doubled and multiplied, but fear Allaah that you may be successful” [Aal 
    ‘Imraan 3:130]:  This verse was revealed concerning the riba of the 
    Jaahiliyyah. Sa’eed ibn Jubayr said: If one man owed another man money, when 
    the time to pay came he would say, “Give me more time and I will pay you 
    more money. That is what is meant by doubled and multiplied. End quote from
    Zaad al-Maseer (1/457). 
Shaykh Muhammad al-Ameen 
    al-Shanqeeti (may Allaah have mercy on him) said: It should be noted that 
    the riba which all Muslims are unanimously agreed is not allowed, and no one 
    differed concerning that is the riba of the Jaahiliyyah, which is where the 
    lender would give the borrower more time to pay in return for the latter 
    increasing the amount to be repaid. End quote. 
The scholars are 
    unanimously agreed that every loan in which it is stipulated that more be 
    paid is riba. 
Ibn Qudaamah (may Allaah 
    have mercy on him) said every loan in which it is stipulated that more be 
    paid is haraam, with no difference of scholarly opinion. Ibn al-Mundhir 
    said: They are unanimously agreed that if the lender stipulated that the 
    borrower must pay something extra or give him a gift, and he gives the loan 
    on that basis, taking the extra amount is riba. 
It was narrated from Ubayy 
    ibn Ka’b, Ibn ‘Abbaas and Ibn Mas’ood that they forbade loans that bring 
    benefits. End quote from al-Mughni (4/211). 
Based on that, if the banks 
    allowing you extra time to pay off the loan is in return for interest or 
    fees, then it is the essence of riba, unless the fee is very low, such as 
    the cost of paperwork and the like, and the bank will not benefit from that. 
    These type of fees should not vary according to the amount of money 
    involved, so whether the debt is one hundred thousand or ten thousand, the 
    fee should be the same, if we assume that this procedure requires fees.  
But if the fee is very 
    high, or the fee varies according to the amount of money owed, then this is 
    the essence of the riba of Jaahiliyyah. 
Dr. ‘Abd-Allaah ibn 
    Muhammad al-Tayyaar was asked: I took from the bank what is known as 
    tawarruq, and the borrower may delay one of the payments until the end of 
    the period, but the bank will charge a fee between 200 and 250 riyals in 
    return for the delay. Is this amount considered to be riba or is it 
    permissible? 
He replied: If this amount 
    is in return for an unforeseen delay in the event of non-payment or being 
    unable to make a payment, then this is the riba of the Jaahiliyyah which is 
    haraam according to scholarly consensus. When the time for paying the debt 
    came they would say: Either pay it off or increase the amount. The shar’i 
    option in this case is to give the one who is hard up extra time to pay, as 
    Allaah says (interpretation of the meaning): “And if the debtor is in a 
    hard time (has no money), then grant him time till it is easy for him to 
    repay” [al-Baqarah 2:280]. But increasing the amount for him is not 
    permissible under any circumstances. End quote from Islam Today website. 
We ask Allaah to protect us 
    and you from the evils, sin and danger of riba. 
And Allaah knows best.