Yuris, YL2GM recently got in touch:

Very many direct QSL letters don’t reach their destination and are returned to me with the reason “address is undeliverable” or get lost in the process. I send out all direct QSL cards once every month. If you have not received your direct QSL card, please write an email to me and I will send again. (yl2gm@inbox.lv) Please also check that your address is correct in QRZ.com and Club Log. LoTW will be uploaded 1st of September.