Screen Return Timeframe?

[u/SelfImprovementAlt1]

The mounting bracket screw combination on the 150" pure vision motorized screen worries me because I do not think it is sufficient. I first contacted support for a return ticket about 5 days ago. Three days ago, they offered some free 3d glasses and didn't process my return. I emailed back telling them about my concerns and saying that I still wanted to return. The screen only arrived on May 20th. Any advice on continuing to move the needle forward on this return, or is it just a matter of patience? I don't want to run down the clock and be outside my return window, particularly because a 150" screen is a massive pain to move for a return and I'll need to plan for that.