tech support

[pain]

After a few rides with the TEKIN System (RX8+2000KV) the ESC died
I want to send my RX8 for rapier and TEKIN need the RA number,so far so good.
I sent 4 mails to receive a RA number but the only response is: "Due to the influx of e-mails received, please give us 2-3 days to respond."
its a 7 days after and nothing.
did someone know the way to get RA number ?

I miss my old Durable mamba without the bullshit support.