Jay Active Air Exchange Cover

This is by far my worst experience at Sportaid, I paid 4,377 for a chair! And the customer service was terrible I was helped very little and some of the items have no size chart it needs to be more specific details missing (side guards, wheel tire types) how am I supposed to know I’m not an expert I used a wheelchair that’s all! I called this morning 12/21/18 to ask about my dylema and I was told “let me get the paperwork call you back”. NO call back but an email at 3:30pm stating the return number and address. On top of that a restocking fee and all shipping cost needs to be add it. I’m really aggravated by all this.