Motorola Moto G User Manual

Can you try press and holding a mail and check if the option to delete shows up.

Did not see any explanation about deleting starred (*) e-mails, I'm afraid.

Check out this video I found, hope it helps: click here

On many phones / carriers...holding down the 1 on your keypad for several seconds will trigger a call to the customer support. 

Hi there. Simply dial 1 and call it. Hope that helps!

Hi lavanya. Are you using any data saving/optimizing apps?

Hi Baz. Are you using a new SIM? Have you tried a simple restart to refresh the network signal on your phone?

Hi vinay. Please visit the question How to remove the star symbol on my Motorola Moto G? Hope that helps!

Hi aysha. Have you tried contacting your carrier? This may possibly just a network issue.

Hi there. I highly suggest only getting this directly from an authorized Motorola service center. Contact them to know how you can have your phone's motherboard be replaced and how much it'll cost. Good luck!