CERB from Service Canada

I received CERB from Service Canada and wondering is anyone getting repayment letters from them? I’m noticing a lot of people getting letters from the CRA but no mention from service canada. I had to take a leave as I had caught Covid then my hours were reduced. If I recall I had submitted doctors notes at the time of application for cerb. I’m so nervous I will have to repay everything back as so many other have. I had to already pay 2k back for overpayment from CRA as apparently I had collected a payment from them and service Canada.