Wrong package

I'm not happy with service received from mondo, I send mtn sim card for home usage with pocket router. The sim card is not working everytime I call them they tell me the return policy is 7 to 14 working days. I spoke to Mandisa Majozi to request their accounts not to debit cause I was send the wrong package, and also request that they listen to the call and give feedback. Nobody is calling no emails nothing, but they say I signed the contract hence they will debit me. So their agent can send wrong package for the sake of sales and nobody care to check why client is complaining as long g as they get their contract money. Signing a contract doesn't mean you milk a person his money especially when everything was done wrong by the person who is working for the company.