Lisa, Lisa, Lisa.
I'm SO glad I picked up on this before you rush into anything.
Welcome Finance are the PITS. I have used them, and in addition to the huge interest you will have to pay back, they are very unprofessional. I went to Spain for 3 weeks and accidently missed one payment of £42. When I arrived back, I found out they had told another tenant in my property how much I owe, what my minimum payments were and how much I had paid back. They told this other tenant that they should pay it back or they would be penalised in the long run. Bunch of cowboys!
I wrote to the Data Protection Registrar after numerous of unreplied complaints and I got my £750 written off.
What I'm trying to say is... unless you like lots and lots of aggro from a rip off company... don't bother. I wouldn't recommend this company. If you're unable to pay back your current loans, you won't be able to pay this one back either.