Non Payment from Rennies

I am very disappointed with Rennies Travel whom I thought was a very professional organisation, however their service leaves much to be desired. I have a B&B and hosted two guests that booked via Rennies Travel in September 2019. Between the booking and the guests arriving I purchased the business, the previous owner closed his account and the payments that Rennies made to them was returned. After numerous calls and a long wait Rennies eventually agreed to investigate the matter. Rennies then paid us for one guest and has yet to pay for the second guest. After more calls and emails Rennies still has not paid us and they have shown disinterest and a nonchalant attitude. The people at Rennies that we have dealt with are Cynthia & Petronella who referred it to Simmons Travel. Ref Accommodation Voucher No. Acc***. In addition we paid the guests their meal allocations to them in cash upfront expecting a prompt payment from Rennies Travel