A credit card event recently got me double checking my statements. I noticed a "shopper discounts" for £7.99 with a phone number by it on the statement. It turns out that I seem to have accidently opted into a montly payment scheme through using interflora to buy flowers.
The scheme does "send you emails" which probably look like spam. Having called them and complained and cancelled they are assuring me a refund, but there a few months payments on there.
How stupid to not see them on the statement, but these things happen.
Anyway, dont use interflora, dont click anything afterwards, do check you statements and do make sure the this shopperdiscounts legitimate but shady business stops.