My debit card date expired. Apple informed me that they were unable to charge card so my Youtube premium was cancelled. Fortunately I went to google and entered renew Youtube premium.... it took me to a google payment which I checked it was real as the price was $17.99 per month not the $23.99 apple was charging me each month. 

Am I missing something? the youtube premium is working fine again ! Is there a difference I don't know about or have i just saved myself $72 a year?