Anybody else get fake discount offers?

I setup internet at my local cox store for a deal that was $70.00+tax 1gb unlimited data. Check my  account and was billed for $186.13. Asked the online live agent customer support about this, and was told no deal was on my account. I lowered my plan through the website to 500 mb with limited 1.2tb data and that was applied within 24hours. I called customer support this time to add the unlimited data and was offered yet another good deal. $100.00 +tax for 1gb unlimited data internet. Even got a work order for it: 35070023. I was assured by the rep 3 times that deal was added to my account, even though I said it is not showing on my app. Yet again, I check with online representative today and no deal is shown but I was offered another deal for $166.88. At this point, it's a joke right? Online customer service is 3rd party overseas but my local cox store did the same thing. (No offer but I have an offer for you.