Fastest proof of address I can get for inland application

[HTS_QC]

Hi, I will apply for inland spousal sponsorship soon and I will need a couple of proof of addresses that show that I currently live in Canada and that I do so with my sponsor. What are the fastest and cheapest proof of address I can get once I land?
Note that I won't have a condo lease nor utility bills as I will be staying at my in-laws.

Would phone plan contract and a gym contract be sufficient?

Do I need a proof of address to open a bank account?

 

[irinaaas11]

A bank statement (joint account) and/or a copy of both of your IDs (or health card) showing the same address would be fine.
Yes, you need to show an ID (so proof of address) when opening a bank account.