RAIN! *********** Service!

I cancelled my 5G with Rain in March on the app, I phoned them 4 times to ask why they have not collected the devise (loan unit), the last consultant assured me that they will contact me to confirm collection and no debit order amount will be deducted for April. BIG LIE. I have tried to contact their support for the past 4 days via telephone but no answer, no email response. I have had it with RAIN,