DRP is dividend re invest into their share but not at current price. For example 7.7 , dividend is 385 for 1000 unit will give 50 (385/7.7)unit to you but this is odd unit because max unit can trade is 100 unit . Therefore 50 unit cannot be trade. If you bought 2000 unit ,give 100 unit. Bear in mind , if ex-date price above 8.1 will consider discount price if drp price is 7.7. You can make decision whether cash or drp before payment date.