When trying to collect on the Shovel links, you must remember, you can only collect 1 every 12 hours. BUT, included in that same 12 hour period are,
and MYSTERY BOXES!
SO if you have collected ANY one of these you must wait another 12 hours before trying again! For each GOOD link you click on, you will see a message like this one,
Telling you how long you must wait to collect again. Hope this helps!!