Cash-Back Offer requiring bank details

[spotter]

After using CCleaner for a number of years I purchased a renewal for CCleaner after a pop-up promising a £20 cash back deal appeared when I logged in (13-Sep-19)

However, despite paying using PayPal, after completing the checkout process, I then find out that I have to provide Bank account details to get my cashback because I live in the UK, while residence of the USA could get theirs refunded via PayPal.

I'm not prepared to divulge my bank account details for something like this, that's why I shop using PayPal as my preferred payment method, so needless to say I didn't get any cashback and ended up paying the full price. 
After contacting support for the cashback offer I was underwhelmed by a response which amounted to "well that's how the scheme is set up" that I didn't even bother to contact CCleaner support directly as the company doesn't appear to care.

My subscription is still active, but I can assure you that I will not be renewing it when the current subscription runs out.

[Nergal]

I've pointed piriform staff to this thread

[Dave CCleaner]

17 hours ago, spotter said:

I have to provide Bank account details to get my cashback [...]

I'm not prepared to divulge my bank account details for something like this [...]

I didn't even bother to contact CCleaner support directly [...]

@spotter: Note that if you supply your bank account details to the cashback redemption provider (Opia, who also handles cashback for the likes of Samsung, Dixons, Sky, Intel, Microsoft, HP, Lenovo, Dell, etc) the only thing that they are able to do with this information is to give you money.

Nevertheless, if this is a concern for you then you can contact CCleaner support (support@ccleaner.com) for an alternative method to get your £20 back to you - refunded via your original payment method.  Note that this will take a bit longer to get your cashback to you due to the manual checks involved, so they will probably recommend that you take the more streamlined and automated route.  If you are happy to wait the extra time, then point them to this thread or tell them that "Dave sent you" to shortcut any "are you sure?" responses.