Sudden Price Increase (over night)

Really impressed with TAKEALOT.com getting back to me regarding my previous mishap but yet again I am left deciding if I should continue shopping with you. Having spent close on R7000 with you in less than a year I would like some feedback regarding the Fitbit Charge HR - Large. Yesterday I was browsing your site and came across the item at a very good price (+-R2400) which is why I was prepared to sleep on it before purchasing the item. Today I log on and its R3300 - EXACT ITEM, Exact reviews!? Ho do you justify the price increase so suddenly? And I am pretty sure this was not a misread from my side as I already split my eBucks (R700) and decided a cash payment of R1700 wouldnt hurt my budget. I understand price changes but this seems a bit more like a mistake either yesterdays listing price or todays.