Last year I had a non-response from Best Western customer service regarding a hotel reward stay changed from 3 nights to 1 night in Zermatt, Switzerland.
I booked 3 nights at 8,000 points per night for a $300 per night room. A couple months later I noticed my reservation was only one night. The hotel had canceled two of my reward nights and I never did get a satisfactory response after several emails back and forth with the hotel. I never got a response from Best Western customer service either. The BW Zermatt hotel offered to reinstate my reservation, but I decided to go to Slovakia instead.
In April 2017 I had an issue redeeming the recent BWR promotion's $10 Travel Card credits at a hotel in Lithuania when the receptionist had no idea how to process the credit.
I wrote a blog post about the incident and the following week tweeted to Best Western Rewards with a link to my article.
Result of that tweet and a follow-up direct tweet at their request resulted in $125 Travel Card credit.
Over the years, I have received adequate customer service about 50% of the time when I run into a Best Western Rewards issue.
I think Best Western Rewards customer service has made improvements compared to my experiences five years ago when there was rarely a response.