We hired musicians for our wedding. They were very responsive before we booked them but after giving them 50% deposit, they haven't been as responsive. We had to reschedule our wedding due to covid and so it's been more than a year of trying to communicate changes with them. Everytime it took them a long time to get back to me, they always had a valid excuse. Our wedding date is now August 1st and I sent over our song list and schedule to them. They kept saying they'd call to chat but haven't called. I followed up with emails and calls but they haven't gotten back so now I'm getting worried. My fiance says not to worry, as long as they come to the wedding and play the music then we will be fine but I feel like if I can't even count on them to respond to emails or calls then how can I trust that thsy will show up on the day of our wedding? Any suggestions on what I should do?