I'm unhappy

Good Day, I seek urgent assistance. I did settle Lendplus on 13 December 2024, trying to reduce my debts. On 31 December 2024 on the pay date, Lendplus debited my account an amount of R5000.00 despite numerous emails sending my proof of payment, there's no response, the worst part, the cell number provided is not even working. I am without a cent. Please assist me, my kids are struggling because of Lendplus, no where to be found with my refund.