[URGENT] can't buy any platinum package

[Rambo_pang43200]

Dear DEs,

Please help, I play this game on PC via Steam platofrm.

I have received the -75% platinum discount from the daily rewards. 

When I trying to access the purchase from in-game to your platinum store website, and I have selected 750 plat + 250 bonus plat, then I was transferred to the Steam page. 

When I reached steam page, it said:
 

" An error was encountered while processing your request:

An unexpected error occured while authorizing your transaction. Please try again. "

I have attempt to get the transaction using my steam wallter, yet it is still giving me the same result after my 6th attempt. 

Regions chat ask me to come her to seek immediate attention. 

Awaiting reply. 

Regards,

Rambo Pang