Hi Bee thanks for leaving a review! Glad to hear your blades were delivered in a speedy manner.
It sounds like the blades are no longer performing as intended. In this case, it's possible they were not installed correctly, we'll check on the installation first.
Good news is we do have our 12-month warranty for any performance issues. We'll get this sorted out ASAP.
I've emailed you directly to offer further assistance, as well as express post replacements if needed.
Hope to hear from you soon!
Cheers,
Wipertech Team