They do not do repairs, however, they will likely have what you need to do the repairs and the knowledge to give you advise on how to do it.
They can sell you what you need and suggest how to repair
They sell the supplies you would need to fix your chairs.
I don't think they do that kind of work. They sell woodworking supplies. But that is not a hard repair. Just use some wood glue and clamp it in place until it dries.
Ask them reference
Thanks! Your answer is awaiting moderation.