TT#56376 selenium: fix crash on entering fraud limits

controller_customer.t:
- Edited code block around clicking invisible buttons on entering fraud
limits. Should work more reliable now.

Change-Id: I71e4cd9c3b9fe8a91661692212357bc4ce816460
(cherry picked from commit 5a8262e2e2)

t/selenium/controller_customer.t

@@ -71,16 +71,10 @@ diag("Check if successful");
 $d->find_element('//div[contains(@class,"accordion-body")]//table//td[contains(text(),"Sipwise")]');
 
 diag("Edit Fraud Limits");
-my $elem = $d->find_element('//div[contains(@class,"accordion-heading")]//a[contains(text(),"Fraud Limits")]');
-$d->scroll_to_element($elem);
-$elem->click();
-sleep 4 if ($d->browser_name_in("phantomjs", "chrome")); # time to move
-$row = $d->find_element('//div[contains(@class,"accordion-body")]//table//tr/td[contains(text(),"Monthly Settings")]');
-ok($row);
-$edit_link = $d->find_child_element($row, './../td//a[text()[contains(.,"Edit")]]');
-ok($edit_link);
-$d->move_action(element => $row);
-$edit_link->click();
+$d->scroll_to_element($d->find_element('//div[contains(@class,"accordion-heading")]//a[contains(text(),"Fraud Limits")]'));
+$d->find_element('//div[contains(@class,"accordion-heading")]//a[contains(text(),"Fraud Limits")]')->click();
+$d->move_action(element => $d->find_element('//div[contains(@class,"accordion-body")]//table//tr/td[contains(text(),"Monthly Settings")]'));
+$d->find_element('//*[@id="collapse_fraud"]/div/table/tbody/tr[1]/td//a[text()[contains(.,"Edit")]]')->click();
 
 diag("Do Edit Fraud Limits");
 $d->fill_element('#fraud_interval_limit', 'css', "100");