Most RecentSudden "Not Registered On Network" (after 1.5 years) - but only with SMARTY SIMsTrying To Buy another Sim Plan.4g calling/volte on Smarty's blacklisted phone (Sony Xperia XZ2 Compact)Sim not workingInternational calls from UKPorting ProblemConnection..Avtex router and SMARTY data only SIM03457 phone numberSpark 20 Ultra sim wont work.
