I have a second line under my account, my main line has no contract but my second line does.

I just checked the app and noticed the telco auto renewed my contract without any added benefits. Asked thru their support chat and they said its due to me not replying their SMS thus they will automatically renew the contract


The sim is actually being used on a 4G USB Modem WiFi and not on a phone, which is why I am not able to receive text message on it. Is there any method for me to get out of the contract without or minimal penalties?

They could've called my main line or send an email, but none. Totally rely on that sms.