I live in Fairfield CA, all around my local T Mobile store are the same, they dont have any 6s plus in stock since launch , only 6s . I used tmobile store locator on tmobile.com, search around with radius 25 miles and call each store , finally found 1 store in Concord got the device I want ( 6s plus 64 space grey ). Lucky ....
I was used 1 time from Jump on demand ( 3 times a year , now 2 left ) . In n out under 20mins with new 6s plus 64gb space grey.
Online said they have in stock , but JOD can't be done online , need in store or phone only, went to local store and told them online have in stock, so they try order for me and when finalize on shipping, T Mobile said 2-4 weeks pop up on their screen .