Hooplr – 100% extra credit for Cycle September

Hooplr are doing a promotion for Cycle September, which is a scheme to encourage cycling that offers prizes.
Hooplr offer secure parking locations for a small fee, and theyre currently doubling your credit if you use the code CYCLESEPT. Presumably lasts for September.
Quote from the email I received:
To celebrate, use code CYCLESEPT when you top-up in the Hooplr app for 100% extra credit. Get £10 for just £5
Trips is our secure, on demand cycle parking service, made up of a growing network of secure Bikehangars. Installed at key locations such as transports links and town centres, you can book a space, and park your bike worry-free from as little as 50p.