Hello. My name is Michael. I can help you with your question if you still need assistance.
The first thing I would do is call the repair facility and get the remote back with it.
In fact, it sounds like they didn't repair it at all, or they sent a refurb in it's place that wasn't working properly. The best course of action will be to call back about the repair ticket, and have them do it again, but do it correctly. Otherwise, you may continue to have unrelated problems. Of course, you shouldn't have to pay for this. It should all be at their expense.