Well, this is the second time for me to get $2 reload for 5 days from Shuffle. The bonus amount is $10 in total. The last time I had received it in
the January month of this year. It is always pleasurable to get exclusive reward like that. The good thing is that they have sent me an email this time by informing me about the reload.

I received the same thing earlier this month if I remember it correctly but I managed to claimed it on the first 3 days only as I forgot to claim the last 2 reload.
Frankly I'm surprised to see the bonus because I'm so inactive but maybe it is a way from Shuffle to attract inactive players to come back

or maybe it is just a random bonus given to random users.
Some other casinos also do similar thing by offering bonus for users who are inactive while the users were actively playing before.
So high likely it is a marketing strategy and in some cases it can be an effective way to make players comeback with this kind of bonus.