Shocking customer service

I have had THE worst customer service from this company,. I bought my husband a golfing sweater. He had worn it once and the hemming had come undone and multiple ‘pills’ on the fabric occurred. I emailed them in the second to last week in July stating I would like to return it and would like a refund as the quality ( for a VERY expensive sweater) was shocking. It took two more emails for someone to finally respond to me. Fast forward to today( 26th August) I have had more than 16 email conversations asking when I can expect my refund, only to get an email back a few days later saying they are just checking that I want to do an exchange?!?! Finally someone emailed me on Wednesday saying they would get back to me the next day, and lo and behold, it is now Friday and I still have not received any communication about my refund!! This has been beyond ridiculous and tedious to deal with and I just want my money back!!’ So frustrated and will 100% never buy another item from under armour ever again!!!!