That one got new platform(forgot name la ), given discount of RM 77, RM 21 per pack, free shipping some more.
Kind hard to say, whole 6.6 they give 15-5 voucher twice, for testing I think.
7.7 they give lot of 15-5 vouchers, at live, at normal page, should be 4x 15-5, 3x 30-10, 1x 50-15.

If you get them all, by stacking with shop vouchers, you get like 20+30+15, in total of -RM 55.
Not to mention about shop voucher that you can stack too.

Also lot of 50% shop discount can stack with 15-5, like I listed above.

So instead of just less people grabbing big vouchers for electronic stuff like 5.5, they split it out and more people getting it la.

Based on 5.5, it is -RM 60 la, stack with Bonus get -RM 20 more, also some platform voucher like 0-28, 15-5 and -5 from shops etc.
So by calculating with Shop vouchers, you are indeed getting more on food which save small enterprise and family lack of money in this 7.7.

Also, you know you just need to watch for 1 hour from 9 PM - 10 PM, and get vouchers, instead of last mins voucher that might showing as voucher code, or 5.5 which showing at 5 PM(forgot, should be around this time)....
Lazcoins also slow down a lot, many people exchange like 2 mins after released too, while more save for future la.
Like the 64GB pendrive, until the end still no one exchanged lol, but 64 GB is useful as well.

Maybe more la, but mostly at Shopee, also less people getting it, like RM 7 stuff.
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Shopee, some of them got duplicate detect within same network, but different phone and payment method.
Some also disallowed to place order.

Lazada, lot people grabbing RM 30-30 with new phone and account, stack with RM 30 FPX payment too, lol
Also getting detect and blocked to use vouchers.
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Also yes, fighting in between both is good.

Pandamart also give RM 20-10 for food, even thought mark up price some, after discounted it is like 15-5 you can get with Lazada.
If you lack of money, also can buy lot of bread which don't make up more than 5% of price, so ya, not bad la.

Just... Limited of choice is their weak point...
But, enough for you to pass this MCO la.