Vodacom unable to activate their Fibre package

I am attempting to get my vodacom fibre activated. I have arranged with the previous owner to release the line with his ISP so that Vodacom can activate my fibre package. The line has been released and I have no internet, but Vodacom now tells me they can only active my internet on the 25th of August. How do they expect me to have no internet for a month? There is no person in the call centres that can assist me in getting this sorted.