Unable to find cell using API that is in homepage and download file

I’m looking for a cell in Bulgaria just for testing purposes.

MCC 284
MNC 01
LAC 4001
Cell ID 7165446

If I put the information in https://opencellid.org, I get a match
If I look in the downloaded 284.csv file that record exists in the file.

However, if I run the API I get no records found

https://opencellid.org/cell/get?key=&mcc=284&mnc=01&lac=4001&cellid=7165446&radio=LTE&format=json