There is no limit for Ringback tones, but the service can only hold up to 150. So, you will have to delete ringback tones once you reach that threshold.
No. With Cricket’s Muve Music rate plan, there are no download fees. There is no monthly cost for music subscriptions. Unlimited music is just included in the customer’s wireless rate plan (like unlimited talk, text, web or 411).
Cricket Wireless is the first U.S. wireless carrier to offer consumers unlimited music (full track downloads, ringtones and ringback tones) as part of any Muve Music wireless rate plan. See Muve Music for details.