Excellent. I was a bit iffy on it due to the timeframe being so close to 'too long', so I'm glad to see them take it on.
Be prepared for a long wait, in all likelihood. They have to contact the other bank, and give them a reasonable time to return info and verify on their end, and so on and so forth.
Realistically, these things usually take 4-6 weeks, and lean much heavier to the longer time.
But at least they're investigating it for you, that's the main thing.