I had the same with my Ryzen 7 3700X which I got for around £215 off Amazon. The box was damaged but it all seemed fine when I opened the box.
My mate got their Ryzen 9 3900 non-X bundle off them. However,I am uncertain if they include a CPU cooler with it,so I hope you have one to hand. I might try and fiddle wround with getting the latency as low on your RAM kit as possible. Ideally Zen2 and Zen3 like the DDR4 RAM at between 3200MHZ~3600MHZ. Official DDR4 support is upto 3200MHZ.