Expected to be paying a settled account

I had a Woolworths credit card, the account was to MBD and during that time I continued to make payments directly to Woolworths and with that the consultants that would usually call me they would acknowledge payments that I paid to Woolworths. Last year I made my final payment on the 31 December 2024, now in June 2025 MBD is calling me with a new balance claiming that Woolworths only recently handed over the account. I have since sent both companies prof of all payments made and none of the companies are giving me feedback but rather they would call insisting I make payments.