Boosted Bulbs review: Returned product - never received refund

I'd purchased some LED bulbs for my vehicles - I'd been back and forth with Brian O'Conner (owner of Boosted Bulbs) since August 2021. I paid $278.78 on December 3rd, 2021 for sets of bulbs for my vehicles. Upon receiving the product on December 27th, 2021, I emailed Brian to let him know most of the products he'd sent did not fit my vehicle. He was going to look into it and was waiting on a new shipment of product that he felt would work. February 22, he emailed and said he wanted to make this right and send me a return label for the incorrect bulbs and send me the correct ones. By March, I'd had enough of the back and forth and getting nowhere. I emailed him and stated I would be sending the incorrect bulbs back (at my own expense) as I just wanted to be done with the whole deal and I wanted a refund. I shipped the package and it was delivered April 20, 2022. I emailed to inquire about my refund and have heard nothing. I would like my refund processed as this has been a ridiculous ordeal stemming over 8 months.