Did the UDC rig Kgalagadi South by-election?

It increased its winning margin by 8%, and its share of votes from 54% to 57%. Its closest rival, the BDP, garnered 35% fewer votes, and the UDC itself saw a reduction of only 22%.

But how was this possible, given the unfulfilled electoral promises, growing shortage of medicines and supplies in public hospitals and clinics that are used by the poor, who had expected the UDC government to end it; growing joblessness and poverty on account of a downturn in economic activity; the cancellation of agricultural programmes that subsistence farmers depend on, etc?