Debt Rescue mot paying my debtors

We have been with Debt Rescue for a few years. With the Corona outbreak, my wedding venue was closed and I did not have an income. I signed papers for a 2 month payment break. After the 2 months as agreed, we paid again as usual. On 25 June I received messages from FNB that my debt review payments were not made to them. I made payment 3 June already to Debt Rescue. I contacted Debt Rescue and they said that no payment reflected and attached a statement of a person who is not me. I sent the proof of payment and they paid FNB. I asked for a statement and saw that the amounts still due on their statement completely differed from the amounts stll due on FNB. There was about a R15000 difference. I requested an answer, they said that they will update it. They never reverted. Now today, I get an sms again saying once again that my debt review payments were not made. I already made payment 3 July! I am really upset and I am wondering how honest these people are. FNB is at the point of cancelling my arrangements, not at all because of me, but because of them! They are supposed to help me get out of a bad debt and they are now causing it. I am at the point of getting lawyers involved!