fix

app/jobs/sendinblue/sms_credits_warning_job.rb

@@ -3,7 +3,8 @@ class Sendinblue::SmsCreditsWarningJob < ApplicationJob
 
   def perform
     return unless ENV['APPLICATION_ENV'] == 'production'
-    if Sendinblue.SmsService.low?
+    if Sendinblue::SmsService.low?
+      sms_credits = Sendinblue::SmsService.sms_credits
       # this message is sent to server_admins only, and server_admins are duplicated between all universities.
       # so we take the first university
       NotificationMailer.low_sms_credits(University.first, sms_credits).deliver_later

app/services/sendinblue/sms_service.rb

@@ -4,10 +4,13 @@ module Sendinblue
     SMS_CREDITS_LIMIT = 500
     
     def self.low?
+      sms_credits.present? && sms_credits < SMS_CREDITS_LIMIT  
+    end
+
+    def self.sms_credits
       api_instance = SibApiV3Sdk::AccountApi.new
       result = api_instance.get_account
-      sms_credits = result.plan.detect { |plan| plan.type == 'sms' }&.credits
-      sms_credits.present? && sms_credits < SMS_CREDITS_LIMIT  
+      result.plan.detect { |plan| plan.type == 'sms' }&.credits
     end
 
     def self.send_mfa_code(user, code)