Bummer. In this price range I think they'll just send you another guitar. At least I hope so. But, if they do glue that bridge back on and do it properly it will likely be fixed for good with no worries. Often a proper repair is stronger than the original build and usually has no noticeable effect on sound quality (timbre) or volume. The wait for the repair would be another bummer.
Their cost for these guitars is probably well under $50 and the warranty with replacement is close to break even for them. Most "made for" distributors, and I don't know if Thomann is, usually have a warranty contract with the builder that gives them a debit memo/rebate/credit percentage on purchases in lieu of actual warranty per item basis. This reduces their labor costs including shipping and processing warranties which allows them to toss that guitar in the trash and send another one to you with zero to minimal loss on their part. They just need to get it back to hold the end user accountable for the return and so they can get a photo of the damage and the serial number so they are accountable to their builder/s. This type of warranty contract is where we get the no questions asked type of warranty on many products so I'm speaking generally but this is very common for made in China, Indonesia and other products that get distributed around the world.

Does the noise in your head bother me ?