A con of an app. It did not let me put my promotion code in, took my payment before I had a chance, there was literally no way of cancelling the order, despite the so called help section, most of which is wrong information, and I have been round and round in circles trying to contact them, it is impossible. This has to be deliberate! Do not trust them. Oh yes, the latest is they bombard you with promo codes, that are no longer valid! On the day you receive them!