Spamming!

I have received 24 phone calls all from similar numbers but all from the same company(United loans solutions). All calling about a loan I app**** for, yet I have not app**** for one. When I ask them when I app**** or where they got my details, they put the phone done. I block all the numbers but a new one just calls. Truecaller shows that the number is from Liquid Telecommunications. It's a serious problem and I am one of many people this is happening to.