Sales Consultant **** to make a sale

I was blatantly **** to just to make a sale and now I cant get through to after sale services. On the 11th of November a sales consultant called me to offer me an upgrade to which I declined. He then offered me an increase of data on my current package. I specifically asked him if this was an upgrade as I would like the freedom to upgrade when I am ready to. He insisted to me that it was not an upgrade and I can still upgrade at any point. I saw a good black Friday deal that I wanted to upgrade with only to find that I am no longer eligible for an upgrade until 2024 because my contract was already upgraded?! I am now on hold with after sales service for the past hour with no one answering to fix this. Their sales constant blatantly **** to me to make a sale and thats not how you treat a customer who has been with you for 20 years straight.