Smoking Paint

good day

last year i went to look for a company that would do a service for my car and i accepted everything with Motorvaps they never delivered as per the promise and i cancelled with them -due to changing the bank they wanted to debit two payments which is like R400 as i used to pay like R230 per month they acknowledged my cancellation and kept quiet am receiving calls now from other collections company that i owe R3000 from R400 am not gonna pay it