bad service

Nedbank MFC sent me an SMS to simplify things in terms of making a payment on my car - the text has a link to pay via easy pay which was said it will be an immediate payment, i follow the link and made a payment on the 26th April till today my payment is not allocated and my account is in Arrears however when i call non of the consultant is willing to help me they keep on sending me from pillar to post i was on a call for 2 hours singing the same song the last guy i spoke with told me i mut just be patient and i had explain to him that i have been trying to resolve this for the past 2hrs but he was not bothered i must just be patient i asked to speak with a manger and he dropped my call. I am very frustrated and i have been patient for long .i am struggling to understand why would MFC run a campaign and not be able to allocate a payment.