Sending As iMessage Instead Of Text

[gemz4the1]

My mum decided to swap back to Samsung from Apple (for the 3rd time!). The problem is my phone keeps trying to send an iMessage to her. I turned off iMessage on her old phone and signed her out of Apple and iTunes before I reset her phone. I have tried deleting all of her details off my phone and even removing her number from my history and when I re-add from scratch it still comes up blue and tries to send all messages as an iMessage.

I know I can press the message whilst it's trying to send as an iMessage and select it to send as a text, but do I really have to do this every time I try to send a message?

Any ideas?

[gemz4the1]

Just to update you:

I spoke to Brian at Apple today to ask about how to make a complaint. 

I asked for a postal address or an email address to send my complaint to.

I had to go through everything from the beginning.

Brian provided me with a postal address (I don't know if I can post it on here)

I asked about an email address and he said that complaints can only be made by post.

[Anonymous]

I see no issue posting info that is freely available and accurate. This may help someone in the future who performs a search.

Hopefully you will reach resolution and be able to put your issue and this thread to bed.

[gemz4the1]

The address that I was advised to forward my complaint to is:

Apple Distribution International,

Hollyhill Industrial Estate,

Hollyhill,

Cork,

Republic of Ireland