Poor Service

I ordered some items on the 24th of August, the same day I requested the invoice for one of those items. Still nothing is available. Having dealt with some Takealot agents before I mailed them to ask for assistance on the 27th of August. On the 28th of August Kwezi.M e-mailed me to say I must request it on the website first. This is exactly what I've done AND explained in my first email - this I've said in my reply on the 28th. This is now the 30th of August and no reply from Takealot and still no invoice. This is for our business and the invoice need to be send by month end (today). Can someone please assist!!