Refund from old supplier

Hi,
We switched to Bulb on 12th September and our first payment came out. My old supplier say they are waiting on Bulb sending over readings before they will refund any outstanding payments on our old account. We have a significant amount of money there- is there a time frame as to when Bulb will do this?
Thanks

Hi @amy6916 we’ve sent off both your gas and electricity meter readings. You’ll receive your credit refund within 6 weeks of your switch date to Bulb. Do shout if you have any queries.

Thank you @jamesmbulb - I don’t trust our previous supplier an inch (hence why we moved!) so I’ll let you know.
Cheers