Terrible Car Loan Experience

Terrible experience. I applied for a car finance loan online, was approved, signed the loan agreement online, and received a congratulatory email from the Post Office advising me to expect to receive the funds within two working days. After two days had passed I called the Post Office to follow up and they told me that the loan had unfortunately been declined! I was shocked. My credit rating is excellent, my record spotless, and the loan was easily affordable. I thought that the Post Office email informing me that the loan had been approved was misleading and is poor practice. On the phone the Post Office staff did not tell me why the loan had been declined at such a late stage. They said that they’d sent an explanatory letter in the post (even though the rest of the application process was online); a letter which has still not arrived. They advised me to check my statutory credit reports from the various ratings agencies and with the agency CIFAS. I’ve since done this and there are no flags and no errors. I’m bewildered by the Post Office’s processes and feel extremely let down by their slow and poor communication. This has put us in a difficult position with respect to the car purchase - which may now fall through - and has caused us a great deal of unnecessary stress.