The Telus 50 plan is a description of download speed. You asked about your Internet Allowance. This is a term I am completely unfamiliar with, so need more clarification.
If your home services were cut off due to late payment of fees, you will need to contact Telus to have them restarted.
Try the options in the 'Contact Us' section at the bottom right of the page!
Chat from a computer might be the easiest, else call first thing in the morning for the shortest line-ups.