I am posting anonymously due to the nature of the question, I hope this is understood.
I work for a firm of Chartered Accountants, small-medium sized. Advised we were being furloughed in March, and this continued for April and May. Was initially told "we cannot ask you to work, however, you can if you want to due to having nothing else to do or if you want to keep our clients happy, we will also top your pay up to 100%". We then received phonecalls weekly from the partners asking what work we had done and what we are expecting to do in the next week. If we didn't work, the work wouldn't have got done for our clients. We were actually busier.
My question is what can we actually do about it? Except resigning (which most people couldn't afford to in this climate), and making a report through HMRC's CJRS fraud reporting service, what else should/could we be doing?
EDIT 1 (To preserve anonymity)
Thanks for all of the responses. I have submitted a report to the institute and also to HMRC.
Regarding whether I am 100% certain CJRS has been claimed or not - I am 95% sure. We received a letter in March advising us of furlough but 100% pay. Then we were asked to take a 20% pay cut for May (but still work, unbelievable! Most people did very little work) then for June they paid us 100%. I am as sure as I can be that they claimed furlough without actually seeing the bank statements.
Once again, thank you all for the responses. We received letters in March advising us we were being put on furlough. Our payslips then showed the furlough payment and the top up amount seperately, for April, May and June. We were told to come back in the office from 1 July, so assumed we are no longer being furloughed, however no letter confirming this has been received.