DFC Bespoke Direct Debit Services

[BigGingerBob]

Hello, unsure whether to post this here or in sl&l.
In January I took out a gym membership. I had a well paid job then and everything looked good. I promptly lost the job abd for 3 months I was jobless but still somehow managing to pay everything. 3 months into my new job and my gym membership hasn't been paid for 2 months.
The dd was cancelled for some reason and I had to pay manually. When I paid manually I was told the dd was redone. It wasn't. I got a letter the following month saying I hadn't paid, I called the gym, they said they had sorted it. They haven't. Just got a letter today saying I have 7 days to pay them 152 pounds otherwise they will pass me on to theor Debt Recovery Department.
I don't want this to happen but I just don't have 152 pounds to my name.
I also don't remember signing anything at the gym, especially not with a dd company.
What do I do next? I've asked the gym for my contract as I want it to look at but they don't seem to have it, apparently DFC do.
I don't want to contact them until I have sone sound advice.

Thanks in advance.

[BigGingerBob]

I did that but with no reply. I now have a letter saying that I owe £1500 and it's now in the hands of a debt collectors.
HELP!!!

[BigGingerBob]

Collection Direct (UK)
How 152 turns into 1500 I don't know, that's what I'm trying to find out. It will be Monday before I can talk to dfc so I might be able to find out then.