Fraud - Returned Gateway In Mint Condition, Now they want $79.00

Returned 5G internet Gateway as speeds got worse over time.  Returned in original packaging as instructed and in mint condition.  Now they want $79 for saying the unit is damaged.  I shipped the unit as customer service directed me to.  Be aware of this tactic. T-Mobile is collecting millions by having the warehouse taking these in, either send fraudulent pictures or creating damage to the unit. Never trust them.