CANCELLATION NOT WORKING

I'm trying to place a 30 day notice to cancel the contract I have with Telkom Mobile , the only way to do so is to fill out and submit an online form, the problem is the form is not available on my online account. I spoke with Angel at the call centre , she confirms the form is not available on the system and has escalated the query to her manager Sinenhlanhla. Angel cant forward me a form to fill out manually as online is the only option. The turn around time for Manager's resolution is 21 working days which is almost equivalent to a month. The store wont help me, the call centre cant help me .. Telkom chat doesn't work . Telkom's online system's don't work effectively_ is there anyone who can help me?