Where to buy a SIM with a good (preferably inexpensive) plan in Da Nang?

[JimmyJ]

I'm staying a long block from My Khe (clean) beach, but I have no problem with taking Grab to another part of town.

 

Need very limited phone calling but need data (internet access) for traveling around town.

 

Need at least 30 days, staying longer if possible.

Edited February 14, 2020 by JimmyJ

[briley]

Pick up a SIM from one of the many dealers - I paid 100,000 Dong for 2Gig that lasted either 7 or 10 days, forget which.