tl;dr version: Corleone's will spam your cell phone mercilessly if you give them a real phone number to work with. Some people probably don't mind this, but I sure as hell do.
Don't get me wrong - the food is alright and their delivery is fairly reliable, but all of a sudden they've decided to go all-out with an unbelievably intrusive marketing 'strategy'.
I've ordered from them about once a month for the past 5 months, never signed up for any 'loyalty' (translation: "Sell my personal details and spam me mercilessly") program, nor given them any permission to contact me for anything other than the particular order I've placed.
As of today, I've started getting unsolicited txt messages (3 today within 2 hours) from Corleone's telling me that I've been automatically signed up for their 'spam my phone' service and then asking for personal details like birthdate - allegedly so I can get some birthday bonus or whatever.
In my world, Corleone's now sleeps with the fishes - I'll get my pizza and cheesesteaks elsewhere from now on.