Background: I have multiple subscriptions and gave Cleverbridge a withdrawal agreement to my PayPal account for each individual subscription. I went into my PayPal account and cancelled one of the agreements as I no longer wished to subscribe for this particular software. Cleverbridge simply withdrew the money under a different agreement!
I'm currently battling with them to transfer the money back before going into legal action.
So if you can't avoid them, get yourself a Revolute account. And for every subscription create a one-time virtual debit card. Use this for the initial payment when entering the subscription. After that no more withdrawals are possible. Before the subscription goes into renewal, change your payment method for the software subscription to a new one-time credit card.
Is a bit of a nasty business if you have to manage multiple subscriptions this way, but heck, I have only one that I really need.