Their contract is a trap do not take it they are croocks

I took a data sim only contract with Mtn to only be told the sim is not compatible with my router I then instruct Mtn to cancel as the sim will not work with my router. I’m told the cancellation takes 3 weeks and I will be billed while waiting for the cancellation! I am canceling within 7 days and I am given the run around Mtn is a **** they do not disclose limitations of their contracts now they want to bill me when I don’t need their contract and its within 7 days I’ve been on hold for retentions for over 40 min no one knows what they are doing. Bunch of ******** and **********. Do not take a contract with mtn u will die waiting for cancellation from these croocks