Silence from Edgars

On 8 August 2018 I app**** , per the process set out in my monthly statement, for an increase to my credit limit. Edgars advised electronically via email that I would have a response in 48 hours. On 24 August 2018 I had still not received a response and advised Edgars thereof - only to receive a similar electronic response "we will respond in 48 hours". On 12 September 2018 I received my subsequent statement. No change in the credit limit(which is Ok but communication would be nice) and still no response from Edgars. Again this was pointed out to them and today ,19 September - still no communication from Edgars.