렌트계약서가 없으면 문제 생겼을 때 분쟁위원회에서도 어려울텐데요. 계약서를 거부하는 곳에는 들어가면 안될것 같습니다. CAB에 아래같은 내용이 있네요
It is a legal requirement for the terms of your tenancy to be in a written tenancy agreement. A landlord who does not provide a written, signed tenancy agreement and ensure that a copy is given to their tenant, is breaking the law and could be fined.