According to https://www.spark.co.nz/outages/

Springvale Outage Outage (Mobile)

 

3G/4G Mobile customers in Springvale may be experiencing a loss of Voice, Data & SMS services. The outage started 24th June 2019 at 16:30. Our techs are working on it and we'll show a green icon on this map when it's back up and running.

 

and

 

Gonville Outage Outage (Internet)

 

Customers in Gonville may be experiencing a loss of Internet service. The outage started 24th June 2019 at 16:32. Our techs are working on it and we'll show a green icon on this map when it's back up and running.

Not a great performance.
Presumably a fibre cut or similar?

Edit: formatting