Mondo Sim Swap

I app**** for a contract with Mondo and I made it clear with the agent that I don't need a new Sim card, I want to receive my contract benefits on the Sim I'm using as it is the same service provider. When the phone was delivered there was a new Sim card. It's been a month since I've been getting **** to by the rude agents. And today the debit order went of for a service I'm not happy with. I'm not paying next month. You are a group of ****s