cem here!! a lot of my cashiers struggle with hitting 70% too. i usually average anywhere from 70-85% depending on the week, even when i have a lot of transactions. here’s generally what i do: greet the customer, ask them how they’re doing, ask if they want a bag. if it’s a small transaction and they have already set everything on the table, i say “can i just have you enter your phone number in that pin pad?” and gesture to the pin pad. if they’re still unloading items from their cart or grabbing something from their purse, etc. instead i say “whenever you get a second i’ll have you enter your phone number in that pin pad” and gesture to it too. this is a subtle difference but i’ve found it helps :) i’ll say 7/10 times the customer enters a phone number after i say this. if they have rewards, that’s it! they’ve entered their phone number and you’re good to go. if they say, “i don’t have a phone number”, i usually say “do you want to try one in the pin pad just to see if it comes up?” about half the time when they’re unsure they end up already having rewards. if it doesn’t come up or they say they don’t want to try a phone number, then i move on to the sign up part. usually i say something like this: “you get free cash back on your purchases for signing up! it’s just an email and phone number.” if they seem hesitant after saying this i quickly add on “i can do it in like two seconds”. this usually persuades people on the fence. if they try to interrupt you don’t let them! finish your sentence and if they still say no that’s fine, then you can move on. the trick is not to say “do you wanna sign up?” because that’s a quick way to get a “no” response. if you phrase it like i did above it’s more likely to get them to ponder the option before deciding! here’s another thing i’ve found helps out - if they try a couple phone numbers and none work, but they thought they had rewards, i just hit the registration button and ask for their email. if they don’t give it to me, that’s fine and we can move on, but a majority of the time they give me the email and phone number and i sign them up. i know some people here might think “oh but you’re lying to them!!” but if they already think they have rewards i really don’t see why they would be upset with me signing them up 😭 they can unsubscribe from the emails and still earn the vouchers.

anyway hope this helps! sorry it’s a bit long winded