Horrible service after ****** cables

I spent 3 weeks without Internet. I could've been assisted the same day our ADSL cables were ****** if someone just told me that I could go into a store and have my line migrated. I don't understand how a company can thrive with such horrible service. I submitted a request and was told they have sent in a dispute to finance yet I am still waiting on the outcome for the 3 weeks without ADSL. I'm now on LTE and the service is so slow and horrible. I can't even stream. I don't know what to do anymore.