To let you know where I went after my Vodacom issues:
I moved away from Blynk simply because I could not afford to commecialise it as an IOT integrator in S.A (don’t get me wrong, its a wonderful project, just too pricey as a commercial version)
I did run my Blynk outdoor sound level monitor and water consumption monitors very well on Blybk for the last few months.
I have moved over to Hassio on a R-pi platform and Tasmota based sensors as the whole thing is free and open source.
Also MQTT is super easy to play with, I have a mosquitto broker running on a VM on google cloud costing $9/month.
I gave up completely using Cellular in S.A, its just not reliable enough but I do use and LTE router as failover from the fibre line here.
Right, very little support and encouragement for IOT devs in S.A., its a shame, but I realise why…not going to say here though!
As for getting our data point to the cloud, Im hoping Satellite-based Lora (Lacuna etc) is going to be a great start for solving these issues./