Tax filling charges

I filled my 2021 tax online and logged into my CRA account that transfer all my tax slips from bank investment as well as my CPP pay for that year. I didn’t do any changes my income was low with no balance owning or refund. I also didn’t use any other accounting, entry etc but when I tried to net file my return turbotax didn’t let me asking to update to premium version with the fee. My filling was done in 5 min including CRA transfer, didn’t use any help then why you’re trying to scam low income person with premium update

my username is evagadzinski22 and I hope you’ll respond ASAP so I can submit my 2021 tax return