Depending on your loan types (are they payday loan type companies?) then debt camel can help.
You our can put complaints in about irresponsible lending etc that will help remove interest etc (in some cases, the amount of interest paid outstrips the loan amount so it’s refunded). There are some quirks but ultimately if you’ve got 80% of your wage paying loans, the companies shouldn’t have lent you the money. Be careful, if you’ve lied to get the cash (over stating your income) then it won’t help you. Take a look on debt camels website and they’ll give you some pretty decent advice.
The majority of complaints end up with the financial Ombudsman Service (it’s easy to do) but they take a while. I’ve had at least £2k back from one company and I’ve another 6 complaints (with larger loans). Gambling and irresponsible lending go hand in hand and the companies have taken advantage of this.
Only warning id say is if you’re still gambling, this is a pointless exercise as you’ll simply piss any money you may get, away