i use APPY25100 same also. cant use.

Multiple time.
You can even use one Shopback account, multiple lzd accounts.

Which color actually? I tried almost all but cannot be applied!

Is it a must for multiple lzd account to get sb rm10?

Or does it  works multiple time with single sb, single lzd account?

I just tried to buy something on lazada via the app but they didn't give option to key in voucher. Buggy system?

I just tried to buy something on lazada via the app but they didn't give option to key in voucher. Buggy system?

proceed till final step. it will be there.

Sb does not care what lzd accounts you use, so answer to your first question is No

Usually people apply multiple lzd accounts to utilize lzd one-time-use vouchers

I tried. Worked but payment transaction will not go thru 

Thanks for the clarification!
Which means eg. Buying 2x rm30 reload should give me 2x rm10 sb (using same/single lzd account)

I just bought a reload coupon from lazada with shopback using mobile app, I login shopback at google chrome, then choose shopback rm10, it link me to lazada app and I successfully paid, but when I checked back at my history at shopback, it just show lazada mobile app 16 mar, 10:11 rm0.00, I make that payment on that time but I didnt get my rebate. Why??

Any promo code for purchase made RM500 and above that is working during checkout??

I tried a few also cannot go thru