up shame 

V. the combination of shaming and up selling. Up shaming happens when you are pressured by a retailer to make a purchase greater than you need, want or perhaps can afford because it is offered at a perceived discounted rate only slightly higher than the size you initially planned to purchase.

I got up shamed at the local drugstore when the soda jerk convinced me to buy the bigger sized drink for only ten cents more.

up shame by Slamb Doctor June 6, 2017