Everyday gigs don't load immediately

I bought MTN everyday gigs, At midnight they expire as expected. However I don't get new bundle for the next day automatically loaded until much later the next day. This means I go a few hours everyday without internet. I usually use my internet between 8pm and 6am. Everywhere it is suggested that you get the next day bundles immediately after midnight when previous bundle expires. But this is not the case. I bought everyday 2gigs for a month. But I can only use them between 8pm and midnight and then need to use anytime data from midnight to 6am until my next bundle gets loaded. This robs me of substantial portion of the 2gigs that I have bought as I can only use it a few hours.